ATE505722T1 - METHOD FOR MEASURING THE THRESHOLD THICKNESS OF A LAYER MADE OF A PURELY RESISTIVE MATERIAL, DEVICE FOR USING THIS METHOD AND USE OF SAID DEVICE IN AN EXHAUST PIPE - Google Patents

METHOD FOR MEASURING THE THRESHOLD THICKNESS OF A LAYER MADE OF A PURELY RESISTIVE MATERIAL, DEVICE FOR USING THIS METHOD AND USE OF SAID DEVICE IN AN EXHAUST PIPE

Info

Publication number
ATE505722T1
ATE505722T1 AT08826491T AT08826491T ATE505722T1 AT E505722 T1 ATE505722 T1 AT E505722T1 AT 08826491 T AT08826491 T AT 08826491T AT 08826491 T AT08826491 T AT 08826491T AT E505722 T1 ATE505722 T1 AT E505722T1
Authority
AT
Austria
Prior art keywords
threshold thickness
electrodes
resistive material
measuring
exhaust pipe
Prior art date
Application number
AT08826491T
Other languages
German (de)
Inventor
Francis Louis Menil
Claude Lucat
Pascal Tardy
Alexandrine Guedon
Patrick Ginet
Original Assignee
Centre Nat Rech Scient
Univ Bordeaux 1
Inst Polytechnique Bordeaux
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centre Nat Rech Scient, Univ Bordeaux 1, Inst Polytechnique Bordeaux filed Critical Centre Nat Rech Scient
Application granted granted Critical
Publication of ATE505722T1 publication Critical patent/ATE505722T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The invention provides a reliable, simple, and accurate method for detecting a threshold thickness of a purely-resistive material deposited on a sensor, and providing a response that is independent of the resistivity of the material. The invention provides a measurement method using a sensor comprising at least two electrode pairs having a defined voltage applied thereto generating current between the electrodes, the electrode pairs differing by at least one first parameter selected from the width, the spacing, and the length of the electrodes, and the voltage applied to each pair, and at least one second one of said parameters being adjusted so that a first resistance or a first current between the electrodes of the first pair, and a second resistance or a second current between the electrodes of the second pair are equal when the threshold thickness is reached.
AT08826491T 2007-06-13 2008-06-12 METHOD FOR MEASURING THE THRESHOLD THICKNESS OF A LAYER MADE OF A PURELY RESISTIVE MATERIAL, DEVICE FOR USING THIS METHOD AND USE OF SAID DEVICE IN AN EXHAUST PIPE ATE505722T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0704221A FR2917497B1 (en) 2007-06-13 2007-06-13 METHOD FOR MEASURING A THICKNESS THICKNESS OF A LAYER OF PURELY RESISTIVE MATERIAL, DEVICE FOR CARRYING OUT AND USE OF SUCH A DEVICE IN AN EXHAUST POT
PCT/FR2008/000801 WO2009010645A2 (en) 2007-06-13 2008-06-12 Method for measuring the threshold thickness of a layer of a purely resistive material, device for implementing same and use of said device in an exhaust pipe

Publications (1)

Publication Number Publication Date
ATE505722T1 true ATE505722T1 (en) 2011-04-15

Family

ID=38871567

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08826491T ATE505722T1 (en) 2007-06-13 2008-06-12 METHOD FOR MEASURING THE THRESHOLD THICKNESS OF A LAYER MADE OF A PURELY RESISTIVE MATERIAL, DEVICE FOR USING THIS METHOD AND USE OF SAID DEVICE IN AN EXHAUST PIPE

Country Status (8)

Country Link
US (1) US20100201385A1 (en)
EP (1) EP2167950B9 (en)
JP (1) JP2010529471A (en)
CN (1) CN101743468A (en)
AT (1) ATE505722T1 (en)
DE (1) DE602008006192D1 (en)
FR (1) FR2917497B1 (en)
WO (1) WO2009010645A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2940424B1 (en) * 2008-12-18 2011-04-01 Centre Nat Rech Scient DEVICE FOR MEASURING A PURELY RESISTIVE MATERIAL THICKNESS THICKNESS THRESHOLD, MEASURING METHOD, METHOD OF DIMENSIONING SUCH A DEVICE AND USE OF SUCH A DEVICE IN AN EXHAUST POT.
DE102011013544B4 (en) * 2011-03-10 2014-12-11 Continental Automotive Gmbh Method and device for operating a particle sensor
JP2013003088A (en) * 2011-06-21 2013-01-07 Aisan Ind Co Ltd Liquid sensor
JP6425993B2 (en) * 2014-12-23 2018-11-21 株式会社Ｓｏｋｅｎ Particulate matter detection element
CN107655395A (en) * 2017-11-14 2018-02-02 成都六惠科技有限公司 wall thickness monitoring device and system
JP7024553B2 (en) * 2018-03-28 2022-02-24 日本製鉄株式会社 Probe of corrosion environment measuring device and corrosion environment measuring device
KR102663792B1 (en) 2018-10-30 2024-05-03 주식회사 엘지에너지솔루션 Method for Determining Dispersibility of Electrode Material
CN114018147B (en) * 2021-11-02 2024-01-16 安徽盛隆木业有限公司 Be used for laminate flooring processing to use timber thickness detection device
CN115639125B (en) * 2022-12-26 2023-10-20 四川薪火恒创科技有限公司 Sludge concentration detection system and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766369A (en) * 1986-03-31 1988-08-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ice detector
US5955887A (en) * 1995-12-22 1999-09-21 The B. F. Goodrich Company Impedance type ice detector
DE19959870A1 (en) * 1999-12-10 2001-06-21 Heraeus Electro Nite Int Measuring arrangement and method for monitoring the functionality of a soot filter
DE102004028997A1 (en) * 2004-06-16 2006-01-05 Robert Bosch Gmbh Method for influencing the soot accumulation on sensors
US20060070890A1 (en) * 2004-09-28 2006-04-06 Tdk Corporation Gas concentration measurement method gas sensor
DE102005018838A1 (en) * 2005-04-22 2006-11-30 Robert Bosch Gmbh Sensor element for particle sensors and method for operating the same

Also Published As

Publication number Publication date
EP2167950B9 (en) 2011-09-28
DE602008006192D1 (en) 2011-05-26
CN101743468A (en) 2010-06-16
EP2167950A2 (en) 2010-03-31
WO2009010645A3 (en) 2009-03-19
US20100201385A1 (en) 2010-08-12
FR2917497A1 (en) 2008-12-19
JP2010529471A (en) 2010-08-26
WO2009010645A2 (en) 2009-01-22
EP2167950B1 (en) 2011-04-13
FR2917497B1 (en) 2010-05-14

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